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Volgvan
3 years ago
15

Solve the pair of simultanous equation. 2x +3y=5. x+y=1​

Mathematics
2 answers:
DiKsa [7]3 years ago
7 0

Answer:

(-2;3)

Step-by-step explanation:

x=1-y

2*(1-y)+3y=5

y=3

x=-2

Rashid [163]3 years ago
5 0
(-2,3)


Hope this is it
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Select the correct answer.
Liono4ka [1.6K]

Answer:

Option C.

Step-by-step explanation:

It is given that,

Total number of applicants = 9

Number of job = 3

We need to select 3 applicants out of 9. So, the required number of ways is

^9P_3=\dfrac{9!}{(9-3)!}

^9P_3=\dfrac{9\times 8\times 7\times 6!}{6!}

^9P_3=9\times 8\times 7

^9P_3=504

Therefore, there are ^9P_3=504 ways the positions can be filled because the order in which the applicants are chosen matters.

Hence, the correct option is C.

4 0
3 years ago
A number cube is rolled and a spinner is spun. Find the probability. The spinner has five sections. 3 sections have the letter B
aliya0001 [1]

https://www.steilacoom.k12.wa.us/cms/lib4/WA01001786/Centricity/Domain/490/Probability%20Notes%20Answers.pdf



this should have every thing on it hope it helps

8 0
3 years ago
The diagram shows corresponding lengths in two similar figures. Find the ratio of the perimeters and the ratio of the areas.
GREYUIT [131]

15:20

divide each by 5

3:4

to find the ratio of the area's we square the ratio's of the sides

3^3 : 4^2

9:16


Choice B

7 0
3 years ago
Ben is 5 years less than 3 times Gracie's age. How can that be represented as an expression?<br>  
Tanzania [10]
You can write 5 times 3
7 0
3 years ago
. A triangle has side lengths of 8, 7, and 14. To the nearest tenth of a degree find the measure of the angle opposite the side
4vir4ik [10]

Given:

The measure of three sides of a triangle are 8, 7 and 14.

To find:

The measure of the angle opposite the side of length 8.

Solution:

According to the Law of Cosine:

\cos A=\dfrac{b^2+c^2-a^2}{2bc}

Let a=8, b=7 and c=14, then by using Law of Cosine, we get

\cos A=\dfrac{7^2+14^2-8^2}{2(7)(14)}

\cos A=\dfrac{49+196-64}{196}

\cos A=\dfrac{181}{196}

Taking cos inverse on both sides.

A=\cos^{-1}\dfrac{181}{196}

A=22.561328

A\approx 22.6

Therefore, the measure of the angle opposite the side of length 8 is 22.6 degrees.

7 0
3 years ago
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